Partition block



July 28,` 1931. s; LAPoF PARTITION BLOCK Filed OC'L. 15, 1930 INVENTOR ATTORNEY Patented. Julyi'r2r8r, 4,1931 I l UNITEDl sTArrs PATENT oFFIciJ.g

SAMUEL LAPOF, OFVBROOKLVYN, NEW YORK, r.AYSSIGrNOR T IBA-RAY PRODUCTS, INC.,

oF NEW YORK, N. Y., AcoRPoRATIoN' PARTITION BLOCK RESSUED yApplication led October 13, 1930. Serial No. 488,248.

This invention relates to devices impervious to Xrays,'and which may be utilized asy s ra protection againstthe injurious leffects of vsuch radiation.y

Protection against lX-raysis a necessity Vfor all persons in proximity to apparatus emitting such rays. vHeretofore, lprotective construction has included the use of lead al- Y tion blocks appearance, at the same time l ly imperviousvto X-rays.

most exclusively in complicated, cumbersome, uneconomical and frequently ineflicient forms. c Y f j 'It is an object of this invention to provide a partition block kwhich is impervious to kX-y rays, at the same time being economical and I of such a yshape as yto facilitate its handling.

A further object is the provision of parti-r which may be assembled yto producev a partition having the usual outward Y being complete- These and other objectsareattained by the novel construction,.combination and karrange- Y ment of parts hereinafter described and and in which invention.

"block embodying the invention. y

Fig. 2 is an elevational view of a ypartitlon shown in the accompanying drawing, constituting a material part of thisdisclosure,

Fig. l is a perspective view of a partition or wall formed from blocks embodying the Fig. 3 is a sectional view taken on linel 3 3 Re erring to the drawings, in Figll, Athe partitioniblock is shown `to include a pair of gypsum, con- `Each slab has a centrally efriqa Y which is placeda fibrous material 9, such as ce1oteX,or the common types of fiber boards.

The slabs are separated by a sheet oflead 7 v. which is secured to thefibrous material 9 by I an adhesive.

As shown in Fig. 3, theedges of the sheet lead 7 project beyond the edges of the slabs yslabs of A partition may be readilyy constructed with blocks of the type described to produce ya wall of common outward appearance such as shown in Figure 2, which Wall is at. the same time absolutely impervious to X-'rays Heretofore, lead sheets have been attached to vprovide flaps 8, and the edges of the slabs to concrete orgypsum by means of projec- 7 tions or loops embedded in the concrete.A By means of my invention, such construction 0f lead sheets is not necessary and by attaching the lead sheets by means of an adhesive the cost ofk duced. y

The foregoing disclosure is to be regarded as descriptive and illustrative only, and not as restrictive orjlimitative of the invention, of which obviously anembodiment mayffbey constructed including modifications without departing from the s cated and denoted in the appended claims.

f Havingy thus described theinvention, what l' and desired to protect by.

Sis claimedas new Letters Patent, is:

producing the block is materially regeneral scope herein indif l. A block for use in constructing a wall .l

impervious to X-rays, comprising a pair of gypsum or concrete, each slab having a central recess in which is positioned a fibrous material,` and a lead sheet secured to the n separating the slabs, the edges of the lead sheet projecting beyond the edges of the block. s

' 2. A block for use in constructing a Wall impervious to X-rays, comprising a pair of slabs having brous material attached to theirfadjacent faces and a lead sheet sepa-- rating the slabs, said sheet being attached to fibrous material by adhesive and y Y if Y 1,815,921

the ibrous material by means of an adhesive. 3. A'bloek for use in constructing a Wall impervious to X-ra'ys7V comprisin a pair of slabshaving their adjacent faces eveiled to form grooves, and a lead sheet,Y positioned between and attached to the s1abs,the edges of the sheet projecting beyond the edges of the slabs.

In testimony whereof he has aiiXed his signature this 8th day of October, 1930. 10 SAMUEL LAPOF.- 

